i like the sony tj37 however are there any other pdas that can compare to it. the only things i don't like about it is that it uses the memory stick but i can live with it. and since sony stoped making pdas i'm worried about accessories for it. i like the wi-fi of the sony, and the price. but i was wondering are there any other pdas that has the wi-fi, mp3, video and the price range of like 300 bucksany ideas?

That's the only Palm OS device in that price range to offer that feature set. The Zire 72 is its competitor but it has Bluetooth rather than WiFi.

The mid-range Dell Axim X30 reviewed on this site competes in the same price range but is a Pocket PC. It doesn't have a camera but it does have both WiFi and Bluetooth, MP3 playback and video playback.